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MCP1640T-IMC Datasheet(PDF) 3 Page - Microchip Technology

Part No. MCP1640T-IMC
Description  0.65V Start-up Synchronous Boost Regulator with True Output Disconnect or Input/Output Bypass Option
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP1640T-IMC Datasheet(HTML) 3 Page - Microchip Technology

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 2010 Microchip Technology Inc.
DS22234A-page 3
MCP1640/B/C/D
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
EN, FB, VIN, VSW, VOUT - GND ...........................+6.5V
EN, FB ........... <greater of VOUT or VIN > (GND - 0.3V)
Output Short Circuit Current....................... Continuous
Output Current Bypass Mode........................... 400 mA
Power Dissipation ............................ Internally Limited
Storage Temperature .........................-65oC to +150oC
Ambient Temp. with Power Applied......-40oC to +85oC
Operating Junction Temperature........-40oC to +125oC
ESD Protection On All Pins:
HBM........................................................ 3 kV
MM........................................................ 300 V
† Notice: Stresses above those listed under “Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of
the device at those or any other conditions above those
indicated
in
the
operational
sections
of
this
specification is not intended. Exposure to maximum
rating conditions for extended periods may affect
device reliability.
DC CHARACTERISTICS
Electrical Characteristics: Unless otherwise indicated, VIN = 1.2V, COUT = CIN = 10 µF, L = 4.7 µH, VOUT =3.3V, IOUT =15 mA,
TA = +25°C.
Boldface specifications apply over the TA range of -40
oC to +85oC.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Input Characteristics
Minimum Start-Up Voltage
VIN
—0.65
0.8
VNote 1
Minimum Input Voltage After
Start-Up
VIN
—0.35
V
Note 1
Output Voltage Adjust Range
VOUT
2.0
5.5
VVOUT  VIN; Note 2
Maximum Output Current
IOUT
100
150
mA
1.2V VIN, 2.0V VOUT
150
mA
1.5V VIN, 3.3V VOUT
350
mA
3.3V VIN, 5.0V VOUT
Feedback Voltage
VFB
1.175
1.21
1.245
V—
Feedback Input Bias Current
IVFB
—10
pA
Quiescent Current – PFM
Mode
IQPFM
19
30
µA
Measured at VOUT = 4.0V;
EN = VIN, IOUT = 0 mA;
Note 3
Quiescent Current – PWM
Mode
IQPWM
220
µA
Measured at VOUT; EN = VIN
IOUT = 0 mA; Note 3
Quiescent Current – Shutdown
IQSHDN
—0.7
2.3
µA
VOUT = EN = GND;
Includes N-Channel and
P-Channel Switch Leakage
NMOS Switch Leakage
INLK
—0.3
1
µA
VIN =VSW =5V; VOUT =
5.5V VEN =VFB =GND
PMOS Switch Leakage
IPLK
0.05
0.2
µA
VIN =VSW = GND;
VOUT =5.5V
NMOS Switch ON Resistance
RDS(ON)N
—0.6
VIN = 3.3V, ISW = 100 mA
PMOS Switch ON Resistance
RDS(ON)P
—0.9
VIN = 3.3V, ISW = 100 mA
Note 1:
3.3 K
 resistive load, 3.3V
OUT (1 mA).
2:
For VIN > VOUT, VOUT will not remain in regulation.
3:
IQ is measured from VOUT; VIN quiescent current will vary with boost ratio. VIN quiescent current can be
estimated by: (IQPFM * (VOUT/VIN)), (IQPWM * (VOUT/VIN)).
4:
220
 resistive load, 3.3V
OUT (15 mA).
5:
Peak current limit determined by characterization, not production tested.


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